Carbureter.



H. D. PEASLEB.

OABBUBETEB.

APPLIOATIOI rmw Junnza, 191a.

Patented Aug. 11, 1914.

o l a ll v 314M010 HDPeaslce HUGH D. PEASLEE, OF FRESNO, CALIFORNIA...

GARBURETER.

Specification of Letters Patent.

Application filed June as, 1913. Serial No. 776,317.

To all whom it may concern Be it known that I, HUori D. PnAsLnn, acitizen of the United States, resldmg at Fresno, in the county of Fresnoand State of California, have invented new. and useful Improvements inCarburetors, of which the following is a specification.

This invention relates to force feed mechanical carburetors, the objectof the invention being to provide a carburetor which is adaptableto avariety of fuels, enabling the fuel, in accordance with the naturethereof, to be measured automatically and supplied to the combustionchamber of the motor in the proper quantity and at the proper time.

While the invention will be hereinafter described'as applied to a motor,embodying a single cylinder or combustion space, it is to be understoodthat the principle is applicable to motors having any number ofcylinders and combustion spaces.

A further object of the invention is to provide a carbureter of theclass referred to which is adapted to handle more than one kind of fuelat a time, as for example, a nick acting fuel such as gasolene of ahigli grade, and a low grade fuel, such as kerosene, which explodescomparatively slowly but contains great heat value. t It will alsohandle an explosive gas, such as acetylene, and a low grade liquid orgas fuel.

With the above and other objects in view,

the invention consists in the construction,

combination and arrangementof parts, as will behereinafter more fullydescribed,

illustrated in the accompanying drawings,

and pointed out in the claims hereunto ap pended. I

In the drawings: Figure 1 is a side elevation of a carbureter embodyingthe present invention. Fig. 2 is a vertical diametrical section throughthe same. Fig. 3 is a horizontal section taken in line with the slidewhich varies the capacity of the fuel pocket.

Fig. 4 is a vertical diametrical section similar to Fig. 2, showing aplurality of pockets and slides.

Tl'n carburetor contemplated in this invention comprises the two mainmembers 1 and 2, both of said members being cylindrical in shape andconcentric. the outer member 1 being stationary and the inner mel-nber 2being adapted to turn within the outer member either with an oscillatoryor complete rotary movement. Under the pre ferred embodiment of theinvention, the inner member 2 is mounted on and carried by a rotaryshaft 3 which, in a four-cycle engine, is driven at the same; speed asthe cam shaft, so that a charge of fuel will be supplied by thecarbureter to the combustion chamber of the motor once in each tworevolutions of the engine shaft or once in each complete revolution ofthe cam shaft,

the fuel being supplied to the-combustion chamber just before'the timeof ignition, and after the suction stroke of the "piston has filled thecombustion chamber with air.

The inner member 2 is provided with a fuel pocket 4. extendingtransversely and, radially through the .same with respect tothe centerof movement of said member, as illustrated in Fig. 3. This pocket, whichmay be of any size, is preferably rectangular in cross section, andwithin said pocket is mounted a slide 5, the outer end of which formsthe inner wall of the fuel pocket, the slide 5 working with a snugsliding fit in said pocket.

The means for operating the slide 5, so as to vary the capacity anddepth of the pocket 4 embodies a spindle 6 which forms an extension ofthe shaft 3, and turns therewith at the same speed. Mounted to slidelengthwise ofthe spindle 6 is a slide operating member or traveler 7.This traveler carries at one side ofthe spindle 6 a pin8 which passesthrough an inclined or oblique slot 9 in the slide 5, so that as themember 7 moves lengthwise of the spindle 6, the slide 5 is movedinwardly or outwardly, according to the direction of movement of themember 7.

At one end the member 7 is provided with a collar 10, to which arepivotally connected one set of arms 11 of a speed governor, embodying asecond series of arms 12 and weights or balls 13 whichmove outwardly bycentrifugal action, in accordance with the speed of rotation of thespindle 6, the arms 12 of the governor being pivotally connected, at 14,to the spindle 6, so that the arms 11, when the balls 13 move outwardlyand inwardly, transmit motion to the collar 10, and therefore to themember 7, cans ing the latter in turn, through the medium of the pin 8and slot 9, to draw the slide 5 inwardly or move the same outwardly.

The mechanism just above described operates automatically to shift themember 7 for Patented Aug. 11, 1914.;

correspondingly shifting the slide 5 and varying the. capacity of thepocket.

In some cases, it is important to be able to manually control the sizeof the pocket, and I, therefore, show means for accomplishing this, thesaid means embodying a ring 15 extending around the spindle (3 at oneside of the member 7 said ring being connected to an operating stem 16which extends through a central longitudinal bore in the spindle 6, andis provided atits outer end with a grooved collar 17 to which a suit.-able hand-controlled lever is coninrctcd. By operating this lever, themember 7 may be shifted along the. spindle 6, so as to correspondinglyactuate the slide A. spring 18 bears against the collar 10 above referrcd to, said s ring acting to move the member 7 in such irection asto actuate the slide 5 outwardly for reducing the siZe of the Fuelpocket, When the speed of the spindle 6 is reduced.

The outer member 1 is provided with a fuelinlct or supply passage 19inone side thereof, and adjacent thereto and in the same side thereof isa fuel overflow passage 20 which leads back to the fuel tank, from whichfuel is fed to the supply passage 19, the said fuel supply tank and thenecessary piping from the same to the member 1 not being shown. At theopposite side, the member 1 is provided with a pressure inlet passage21, and a fuel outlet passage 2 arranged to be thrown intoCUIIlmlHllCflilOli with each other, when the pocket 4- registerstherewith. 1

In Fig. 3, the passages '19 and 20 are shown as arranged substantiallyopposite the p'assages 21 and 22, so that in the rotation of the member2, the pocket 4 will at one time register with the passages 19 and 20and receive a certain charge of fuel, and subsequently register with thepassages 21 and 22 so that the said charge of fuel may be expelled fromthe pocket and carried into the combustion space of the motor. A supplyof air under pressure from a suitable storage tank or air compressor isadmitted. constantly to the passage 2.1, and, therefore, when the pocket4 registers with the passages 21 and 22, the fuel is expelled from saidpocket by air pressure, and thus carried positively in a predeterminedquantity to the cylinder or CO'Il'lbliStiOn. space of the moto-r.' Thefuel which is admitted to the pocket through the passage 19, afterfilling the pocket, overflows through the passage 20 back to the fueltank. This insures filling the pocket with fuel and takes care of thesurplus fuel, thereby insuring a complete filling of the pocket withfuel, irrespective of the position of the slide 5 which controls thesize of the pocket.

It will, of course, be umlcrstood that while Ihave shown only one set ofpassages 19, 90,

21 and 22 adapted for use in connection with a single cylinder orcombustion space, any number of sets of such passages may be provided,in accordance with the number of cylinders or ,:ombustion spaces, sothat. in each complete revolution of the member 2, all of thocylinders-will be supplied with charges of fuel, each combustion spacegetting its proper in'oportion of fuel. As the speed of the engine.increases, when extra load or duty is imposed thereon, the size of thefuel pir-ckcl. is automatically increased, thereby supplying thecylinders with a greater amount of fuel. This governor can be used toprevent an increase oi engine speed, for stationary and truck work.

in some cases, it is desirable, for the sake of cconoiny,t.c use morethan one kind of t'uel, and in Fig. 4, l have illustrated the device ascomprising two lnel pockets 4' and i". using, in connect ion therewith.two slides 5 and It is thought unnecessary to go into a Further[vscripticn ol the arrangement shown in Fig. l, as it. corresponds en'-aclly with the .-:.howing made in Figs. '1, 2 and I). etccpt that theslides and pockets are duplicated, and it will also be understood illatthe number of passages t admit the fuel to the inner n'icinbcr andprovide for GX- pelling'the 'lucl tht'xrclrom will be correspondinglyduplicated.

The construction illustralcdin Fig. ten-- ables the motor to be ted withtwo kinds or grades of fuel such, for example, as kerosene, andacetylene or heigas.

The carburetcr hcrcinabove described will enable higher compression. tobe obtained, without pro-ignition.

The construction is exceedingly simple. and renders it possible to useonly one valve in the engine to perform the function of both the presentinlet and exhaust valves. It also makes it. possible to thoroughly mixdiil'ercnt fuels and to use gas as well as liquid for fuel. A perfectcontrol of the rpiantity (it fuel is obtained, causing each cylinder tobe supplied with exactly the same amount olf luol. lert'ect combustionis obtainable, and the carbiueler may be used without any danger ofstrangling or starving the engine at any speed, a common occurrence withthe present type of lloat feed CHIlMll'UlZOl.

lt is believed that the carl'nireter of this invention will also sol vethe bacletiring and 1 re-i {n ition troubles now present in twocycleengines, and will also llill'EtlStB the cfliciency ot, revolving and olher aeronautical molors. l urllwrmore, it will economize in the liuelconsumption of all internal combustion engines, by reason of the factthat the fuel is practically measured for each and every cylinder. Theca rburctcr per .sc has no springs or weights and does not. depend uponsuction. The operator may readily 1 pocket canbe rotated in such mannerthat 20 hat is claimed is:

passages with which said pocket is adapted to register subsequently tothe registration first mentioned, and governor mechanism containedwithin said inner member for automatically varying the fuel holding ca-35 pacity of said pocket 2. In a carbureter, outer and inner concentriccylindricalmembers, theouter member being stationary and the innermember being mounted to turn within the outer mem- 4p control the amountof fuel and the liability of thecarbureter being clogged'is reducedstruction involved.

y using a separate. carburetor for each cylinder, it will be possible tointroduce the fuel into the cylinder, or combustion cham ber without theaid of a compressed air tank. he inner member Cit overflow passages withwhich said pocket is I adapted, to register and also formed with 4%which said pocket is adapted to register subsequently' to theregistration first mentioned, means for varying .the'fuel holdingcapacity of said fuel pocket, embodying a slide form- 50 n a carbureterouter and inner coning a wall of said pocket, and governor centriccylind ical members, the outer mem mechanism contained Within said innerer being stationary and the inner member member and operativelyconnected With said being mounted to turn wit in the outer slide forshifting the latter in said pocket. 5 "member, the I inner member beingformed In testimony whereof I afiix my signature 56 with a fuel pocketin its external face, and lII PIGSGIICG of two witnesses. r the outermember being formed-with fuel HUGH D. PEASLEE. supply and overflowpassages with which Witnesses: said pocket is adapted to register andalso J. O. WALSH,

so as to receive pressure therefrom to eject the liquid or other fuel.

:30 formed with pressure inlet and fuel outlet 0. A. EDGECOMB.

